聚丙烯装置夏季运行负荷瓶颈分析及改造措施  

Analysis and improvement measures of load bottleneckin summer operation of polypropylene plant

作　　者：张海军 郭文波 李振刚 王雁 ZHANG Haijun;GUO Wenbo;LI Zhengang;WANG Yan(PetroChina Ningxia Petrochemical Company,Yinchuan Ningxia 750026,China)

机构地区：[1]中国石油宁夏石化公司,宁夏银川750026

出　　处：《石油化工应用》2024年第3期115-118,共4页Petrochemical Industry Application

摘　　要：某聚丙烯装置采用意大利巴塞尔公司的Spheripol-Ⅱ双环管工艺,以丙烯为原料,在高效催化剂作用下生产高附加值的聚丙烯树脂。通过环管夹套水冷却器降低聚合反应放出的热量,进而保证环管反应器温度稳定。夏季气温上涨,装置循环水温度升高,环管夹套水出入口温差小,冷却器换热系数降低,因此,撤热不及时,容易造成环管飞温和爆聚,严重影响装置的高负荷生产和长周期运行。通过对装置环管反应器冷却效果进行分析并提出改造措施,以改善环管反应器的撤热问题,确保装置安全平稳运行。A polypropylene plant adopts the Italian Basel Spheripol-Ⅱdouble loop process,using propylene as raw material,to produce high value-added polypropylene resin under the action of efficient catalysts.The heat released from the polymerization reaction can be reduced by the water cooler with a jacket in the loop pipe to ensure the temperature stability of the loop pipe reactor.In summer,as the temperature rises,the temperature of the circulating water in the device increases.The temperature difference between the inlet and outlet of the jacket water in the ring pipe is small,and the heat transfer coefficient of the cooler decreases.Therefore,if the heat is not removed in a timely manner,it can easily cause the ring pipe to fly and explode,seriously affecting the high load production and long-term operation of the device.By analyzing the cooling effect of the loop reactor in the device and proposing improvement measures,the heat removal problem of the loop reactor is improved to ensure safe and stable operation of the device.

关 键 词：环管反应器 冷却器 高负荷 改造措施 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]